Explain that the volume and concentration of urine produced is affected by water intake, temperature and exercise

Identify on drawings, diagrams and images, the ureters, bladder and urethra

Explain the need for excretion, limited to toxicity of urea and carbon dioxide

Outline the structure of the kidney, limited to the cortex, medulla and ureter

Outline the structure and functioning of a kidney tubule, including: -the role of the glomerulus in the filtration from the blood of water, glucose, urea and salts

– the role of the tubule in the reabsorption of all of the glucose, most of the water and some salts back into the blood, leading to the concentration of urea in the urine as well as loss of excess water and salts (details of these processes are not required)

Activities

Read pages 1 and 2 from this site. Pay attention to the different structures of the urinary system

Play this animation. Follow instructions to understand how kidneys work

What happens to the different substances along the kidney tubules. Click on them to find out!